Home / 10,109.04-15,140.98-7,751.68

Finding the Fourth Proportional to 10,109.04, 15,140.98 and 7,751.68

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Solution

The fourth proportional to 10,109.04, 15,140.98 and 7,751.68 is: 11,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.04 : 15,140.98 = 7,751.68 : x
  2. Step 2: Convert to fraction form
    10,109.04/15,140.98 = 7,751.68/x
  3. Step 3: Cross multiply
    10,109.04x = 15,140.98 × 7,751.68
  4. Step 4: Simplify right side
    10,109.04x = 117,367,956.14
  5. Step 5: Solve for x
    x = 117,367,956.14/10,109.04
  6. Step 6: Final answer
    x = 11,610.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.